Data corruption is the damage of info caused by various software or hardware problems. After a file gets corrupted, it will no longer function accurately, so an app will not start or shall give errors, a text file will be partially or fully unreadable, an archive file will be impossible to open and unpack, etc. Silent data corruption is the process of data getting harmed without any acknowledgement by the system or an admin, which makes it a serious problem for hosting servers as failures are very likely to happen on larger in size hard drives where significant volumes of information are stored. In case a drive is a part of a RAID and the data on it is duplicated on other drives for redundancy, it is very likely that the damaged file will be treated as a standard one and will be copied on all the drives, making the harm permanent. A lot of the file systems that operate on web servers these days often are unable to find corrupted files immediately or they need time-consuming system checks through which the server isn't functioning.

No Data Corruption & Data Integrity in Shared Hosting

We've resolved the issue of silent data corruption on all our shared hosting servers by using the advanced Z file system, or ZFS. The latter is superior to other file systems as it is the only one on the market which checks all the files right away by using a checksum - a digital identifier that's unique for every single file. When you upload content to your account, it will be stored on several NVMe drives and frequently synced between them for redundancy. ZFS constantly compares the checksum of all files and in case any file is detected as corrupted, it is replaced immediately with a good copy from some other disk. As this happens in real time, there is no risk that a damaged file may remain or may be copied on the other NVMes. ZFS requires a lot of physical memory to carry out the real-time checks and the benefit of our cloud web hosting platform is that we use multiple powerful servers working together. In case you host your sites with us, your data will be undamaged no matter what.

No Data Corruption & Data Integrity in Semi-dedicated Hosting

In case you acquire one of our semi-dedicated hosting packages, you won't have to be concerned about silent file corruption because we use ZFS - an advanced file system that checks all the files in real time. Each time you upload a file to your website hosting account, ZFS will assign a unique digital fingerprint to it - the so-called checksum. That file will be synchronized between a couple of NVMe drives for redundancy, so if a drive fails, the other ones will take control. ZFS compares the checksum of all copies on the different drives and when it detects a corrupted copy, it replaces it with a healthy one from another drive. This happens right away, so there will be no risk for any part of your content at any time. By comparison, all the other file systems execute checks after a system malfunction, but since they don't use anything similar to the checksums which ZFS uses, they are unable to detect silently corrupted files, so a corrupted copy may be replicated on the other drives as well and you could lose critical data. As this isn't the case with ZFS, we're able to guarantee the integrity of every single file you upload no matter what.